Kingsforth graburn



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sAsHf PASTENBR.

No. 413,659. Patented Oct. 29, 1889.

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` K. GRABRN.

4 SASH FASTENER.

N0..413.659. Patented oct. 29, 1889.

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i, UNITED STATES PATENTV OFFICE.

Knvesron'rn GRABURN, OFWINNIPEG, MANiToBA, CANADA.

sAsH-FASTENER.

SPECIFICATION forming part of Letters Patent N o. 413,659, dated October2 9, 1889. Application filed July 12, 1889. Serial o. 317,840. (Nomodel.)

Beit known `that I, KINGsFoRTH GRABURN, a subject of the Queen of GreatBritain, re- Siding at Winnipeg, "in the Province of Manitoba andDominion of Canada, have invented certain new and useful Improvements inWindow-Fasteners; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as Will enable`others-skilled in the art to which it appertains to Amake and use thesame.

My invention consists in the` improved window-fastener, hereinafter tobe describedand claimed. l Y Y ,y y

In the drawings, Figure l is a perspective `View of a Window with myinvention applied. Figs. 2, 3, 4., 3f?, 4a, and 5 illustratemodifications of the same. i

A. desirable Window-fastener should have the qualities of simplicity, ofadjustability, of positiveness of action, and of safety. I haveendeavored to combine these qualities by the following arrangement, inwhich A is the window-casing, and B B are the two WindoW-sashes slidingtherein. These sashes B B have perforations P P', in which vertical rodsR R', which are attached to the window-cas` ing, may slide.` These rodsare fastened to the Window-casing either by means lof the plates. E, asshown in Fig. 1, or by turning over the end of the rod into a foot F,through fis passed, as shown in Figs.

Connected with or set `in each Window-sash is a jaw which slides uponthe vertical rod.

` This jaw .maybe nothing more than the surrounding portion of the sashitself, as shown in Fig. l, or it may be a metallic jaw J set in thesash, as shown in Fig. 3, or an external jaw screwed to the sash,.asshown in Fig. 4t.,

In this jaw, of whatever construction, is a set-y screw S or S', whichcompresses the rod within the jaw, and together with said jaw forms ascrew-clamp sliding over the rod or rigidly attached to the same,according to'whether the screw is forced inwardly or is left partlywithdrawn.

In the preferred form of my invention each vertical rod is provided witha notch VN at that point Where 'it will be clasped by the- Screw-clampwhen the sash is closed. This notch, as shown in the detail vieW,'Fig.5,

` pass through perforations in said sashes.

is, of course, evident that it would be impos-` is provided withabeveledlip n, which bears upon that side of the set-screw from which thesash should be forced to insure complete closure of the window-that is,the notch in the rod to which the lower sash is attached will have thebeveled lip on the upper side of the set-screw, Whereas that to whichthe upper sash is attached will have its beveled lip on the lower sideof the set-screw.

-In the form illustrated in Fig. l, which is perhaps the cheapest formof my invention, the set-screws S S turn in screw-plates D D', set inthe Window-sashes, andthe rods R R It sible to lift the lower sash Babove the upper sash B, inasmuch as the projecting set-screw S wouldencounter the Vupper edge of the lower sash, To obviatethis dificulty, Ihave illustrated the form shown in Fig, 2, in which the set-screw S. ofthe upper sash is let into a countersunk hole.O so that it is iiush withthe edge of the upper sash B, and the lower sash B may pass freely overit. This also permits the placing of the set-screw at orabout the middleof the upper sash, Where it is much more easily reached than when it isplaced at the upper edge of the said sash, as

is necessary when it protrudes, as shown in Fig. l;

In Figs. I and 2 I have shown short rods R R', which are attached toonly the upper or lower portion of the casing. It would evidentlybe astronger construction to make said rods continuous and fasten them atboth the upper and lower portions of the casing, as is illustrated inFig. 3. In this case it would be 'convenient to have the perforations PP, through-which these rods pass, cut out, as shown in the plan view ofFig. 3, so that the sash can be Withdrawn from the windowcasing Withoutremoving the rods R R. In

this figure I have also illustrated a jaw J set in the windoW-sash,witha set-screw S mounted therein. This is a more durable construction thanthat shown in Figs. l. and 2, where the screw-clamp consists simply ofthe set-screw pressing the rod frame.

In Fig. 4 I have illustrated a modification in which but one rod isnecessary, and Where the clamp-jaws .I J are outside of the`wiuagainstthe Wood of the sashdow-sash, and are connected thereto by suitableshanks j j', provided with screw-points K K', which enter the sash.

The method of operation of my invention is evident. When it is desiredto raise or lower one of the window-sashes, the set-screw is loosenedand the sash moved to the desired position, the clamp is then tightenedby turning the set-screw, and the window-sash is held positively in thatposition.

The advantages of the construction are, among others, that the sash islargely prevented from rattling by its attachment to the rigid rod. Itcan be adjusted at any position. The use of the notch with the beveledlip forces the sash firmly againstthe casing and pre- Vents thedroppingof theV upper sash, as is frequently the case with other formsof fasteners. The clamp is either elnbedded in the sash or on theIinside of the window, and is in a position at which it is almostimpossible for persons on the out-side to get if any eiort is being madeto open the window from the outside. It also has the great advantage ofallowing the upper sash to be more easily cleansed when necessary.

Having therefore described my invention, what I claim as new, and desireto protect by Letters Patent, is

l. In a window-fastener, the combination of a vertical rod which isattached to the windowcasing, and which ts into alongitudinalperforation in the window-sash, a jaw which surrounds said rod and isset in the window- Vsash, and a set-screw which is mounted in said jawand bears against said rod, substantially as described. y

2. In a window-fastener, the combination of a vertical rod which isattached to the window-casing, and which its into a longitudinalperforation in the window-sash, a jaw which surrounds said rod and isset in the windowsash, and a set-screw which is mounted in said jaw andbears against said rod, together with a notch cut in said rod at thatpoint where it is seized by the clamp when the window is closed,substantially as described.

In a Window-fastener, the combination of a vertical rod attached to thewindow-casing, a j aw which surrounds said rod and is attached to thewindow-sash, and a set-screw which is mount-ed in said jaw and bearsagainst said rod, together with a notch in said rod at the pointopposite the set-screw when the window is closed, which notch has abeveled lip which bears upon the side of the set-screw from which thesash should be forced to insure complete closure ot thewindow,substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

KINGSFORTH GRABURN.

Witnesses:

R. DOLBEAR, A. F. CRowE.

